Molding mechanism

Abstract

A molding mechanism including one pair of molding devices oppositely disposed in a body and each having a casing, and a number of pin elements arranged in matrix form in the casing, a board engaged in one side of the casing, and a bolt threaded through the casing for forcing the board toward the pin elements in order to fix the pin elements in place, whereby, a mold cavity is formed among the pin elements when the molding devices are moved toward an object disposed between the molding devices.

I claim: 
     
       1. A molding mechanism comprising a body, and at least one pair of molding means oppositely positioned in said body and movable toward each other, each of said molding means including a casing having four sides, and a plurality of pin elements arranged in matrix form in said casing, a board engaged in a first side of said four sides of each of said casings, and a first bolt threaded through said first side of said casing for forcing said board toward said pin elements in order to fix said pin elements in place, said casing including a second side perpendicular to said first side thereof, a plurality of second bolts threadedly engaged in said second side and each arranged in parallel with one column of said pin elements, whereby, a mold cavity is formed among said pin elements when said molding means are moved toward an object positioned between said molding means, each of said columns of said pin elements are fixed in place by a respective second bolt. 
     
     
       2. A molding mechanism comprising a body, and at least one pair of molding means oppositely positioned in said body and movable toward each other, each of said molding means including a casing having four sides, and a plurality of pin elements arranged in matrix form in said casing, a board engaged in a first side of said four sides of each of said casings, and a first bolt threaded through said first side of said casing for forcing said board toward said pin elements in order to fix said pin elements in place, said body including a pair of frames oppositely formed therein, a pair of posts vertically and slidably extended through each of said frames, each of said posts having one end fixed to said casing of said molding means and having the other ends coupled together by a plate, and a second bolt threaded through said plate and having one end rotatably engaged in said frame, whereby, a mold cavity is formed among said pin elements when said molding means are moved toward an object positioned between said molding means, said molding means and said posts are moved toward and away from said frame by threaded engagement between said plate and said second bolt. 
     
     
       3. A molding mechanism comprising a cubic body including four side surfaces each having a frame formed therein, a molding means positioned in each of said frames of said body, each of said molding means including a casing having four sides, and a plurality of pin elements arranged in matrix form in said casing, a pair of posts vertically and slidably extended through each of said frames, each of said posts having one end fixed to said casing of said molding means and having the other ends coupled together by a plate, and a first bolt threaded through said plate and having one end rotatably engaged in said frame, said molding means and said posts being moved toward and away from said frame by threaded engagement between said plate and said second bolt, a board engaged in a first side of said four sides of each of said casings, and a second bolt threaded through said first side of said casing for forcing said board toward said pin elements in order to fix said pin elements in place, whereby, a mold cavity is formed among said pin elements when said molding means are moved toward an object positioned between said molding means. 
     
     
       4. A molding mechanism according to claim 3, wherein said casing includes a second side perpendicular to said first side thereof, a plurality of third bolts are threadedly engaged in said second side and each is arranged in parallel with one column of said pin element, whereby, each of said columns of said pin elements are fixed in place by a respective third bolt. 
     
     
       5. A molding mechanism according to claim 3, wherein a first of said frames includes four corner areas, a rod is extended from each of said corner areas of said first frame and extended inwards of said body, said body includes four ducts formed therein for slidably receiving said rods, whereby, said first frame is movable inwards and outwards of said body by the engagement between said rods and said ducts. 
     
     
       6. A molding mechanism according to claim 3, wherein each of said pin elements includes a square cross section having an orifice longitudinally formed through the center thereof. 
     
     
       7. A molding mechanism according to claim 3, wherein each of said pin elements includes a square cross section having four sides, and a slot is formed longitudinally in at least one of said four sides of each of said pin elements.